Scientific Reports (May 2017)

Overcoming thermal noise in non-volatile spin wave logic

  • Sourav Dutta,
  • Dmitri E. Nikonov,
  • Sasikanth Manipatruni,
  • Ian A. Young,
  • Azad Naeemi

DOI
https://doi.org/10.1038/s41598-017-01995-8
Journal volume & issue
Vol. 7, no. 1
pp. 1 – 10

Abstract

Read online

Abstract Spin waves are propagating disturbances in magnetically ordered materials, analogous to lattice waves in solid systems and are often described from a quasiparticle point of view as magnons. The attractive advantages of Joule-heat-free transmission of information, utilization of the phase of the wave as an additional degree of freedom and lower footprint area compared to conventional charge-based devices have made spin waves or magnon spintronics a promising candidate for beyond-CMOS wave-based computation. However, any practical realization of an all-magnon based computing system must undergo the essential steps of a careful selection of materials and demonstrate robustness with respect to thermal noise or variability. Here, we aim at identifying suitable materials and theoretically demonstrate the possibility of achieving error-free clocked non-volatile spin wave logic device, even in the presence of thermal noise and clock jitter or clock skew.